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Diffstat (limited to 'gl/basename-lgpl.c')
-rw-r--r-- | gl/basename-lgpl.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/gl/basename-lgpl.c b/gl/basename-lgpl.c new file mode 100644 index 00000000..a35ff01c --- /dev/null +++ b/gl/basename-lgpl.c | |||
@@ -0,0 +1,75 @@ | |||
1 | /* basename.c -- return the last element in a file name | ||
2 | |||
3 | Copyright (C) 1990, 1998-2001, 2003-2006, 2009-2010 Free Software | ||
4 | Foundation, Inc. | ||
5 | |||
6 | This program is free software: you can redistribute it and/or modify | ||
7 | it under the terms of the GNU General Public License as published by | ||
8 | the Free Software Foundation; either version 3 of the License, or | ||
9 | (at your option) any later version. | ||
10 | |||
11 | This program is distributed in the hope that it will be useful, | ||
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | GNU General Public License for more details. | ||
15 | |||
16 | You should have received a copy of the GNU General Public License | ||
17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | ||
18 | |||
19 | #include <config.h> | ||
20 | |||
21 | #include "dirname.h" | ||
22 | |||
23 | #include <string.h> | ||
24 | |||
25 | /* Return the address of the last file name component of NAME. If | ||
26 | NAME has no relative file name components because it is a file | ||
27 | system root, return the empty string. */ | ||
28 | |||
29 | char * | ||
30 | last_component (char const *name) | ||
31 | { | ||
32 | char const *base = name + FILE_SYSTEM_PREFIX_LEN (name); | ||
33 | char const *p; | ||
34 | bool saw_slash = false; | ||
35 | |||
36 | while (ISSLASH (*base)) | ||
37 | base++; | ||
38 | |||
39 | for (p = base; *p; p++) | ||
40 | { | ||
41 | if (ISSLASH (*p)) | ||
42 | saw_slash = true; | ||
43 | else if (saw_slash) | ||
44 | { | ||
45 | base = p; | ||
46 | saw_slash = false; | ||
47 | } | ||
48 | } | ||
49 | |||
50 | return (char *) base; | ||
51 | } | ||
52 | |||
53 | /* Return the length of the basename NAME. Typically NAME is the | ||
54 | value returned by base_name or last_component. Act like strlen | ||
55 | (NAME), except omit all trailing slashes. */ | ||
56 | |||
57 | size_t | ||
58 | base_len (char const *name) | ||
59 | { | ||
60 | size_t len; | ||
61 | size_t prefix_len = FILE_SYSTEM_PREFIX_LEN (name); | ||
62 | |||
63 | for (len = strlen (name); 1 < len && ISSLASH (name[len - 1]); len--) | ||
64 | continue; | ||
65 | |||
66 | if (DOUBLE_SLASH_IS_DISTINCT_ROOT && len == 1 | ||
67 | && ISSLASH (name[0]) && ISSLASH (name[1]) && ! name[2]) | ||
68 | return 2; | ||
69 | |||
70 | if (FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE && prefix_len | ||
71 | && len == prefix_len && ISSLASH (name[prefix_len])) | ||
72 | return prefix_len + 1; | ||
73 | |||
74 | return len; | ||
75 | } | ||